公开(公告)号：US06421151B1

公开(公告)日：2002-07-16

申请号：US09131861

申请日：1998-08-10

Applicant: Matthias Berger ,  Lothar Moeller

Inventor： Matthias Berger ,  Lothar Moeller

IPC: H04J1402

CPC classification number: H04B10/572 ,  H04B10/506

Abstract: The invention relates to a method and a device for wavelength stabilizing for multichannel optical transmission systems. An optical multiplexer is used directly for the generation of the optical total signal. This makes possible a simple electronic regulation of wavelengths of the optical carrier signals through analysis of the amplitude values of low-frequency signals, which modulate the optical carrier signals by means of amplitude modulation.

Abstract translation: 本发明涉及用于多通道光传输系统的波长稳定的方法和装置。 光复用器直接用于产生光总信号。 这使得通过分析通过幅度调制来调制光载波信号的低频信号的振幅值来简化电光调制光载波信号的波长。

公开(公告)号：US07149407B1

公开(公告)日：2006-12-12

申请号：US11365742

申请日：2006-02-28

Applicant: Christopher Doerr ,  Daniel Kilper ,  Lothar Moeller ,  Roland Ryf ,  Chongjiin Xie

Inventor： Christopher Doerr ,  Daniel Kilper ,  Lothar Moeller ,  Roland Ryf ,  Chongjiin Xie

IPC: G02B6/00

CPC classification number: H04B10/07953

Abstract: An orthogonal heterodyne in-band optical signal-to-noise-ratio (OSNR) monitoring method and apparatus that use the polarization characteristics of two narrow bandwidth filtered optical spectral components which is not only insensitive to the effects of polarization mode dispersion (PMD) and inter-channel cross-phase modulation (XPM) induced nonlinear polarization scattering, but also independent of bit rate and modulation format. The monitoring method is demonstrated for both linear and nonlinear systems.

Abstract translation: 使用两个窄带滤波光谱分量的偏振特性的正交外差带内光信噪比（OSNR）监测方法和装置，其不仅对偏振模色散（PMD）的影响不敏感，而且 信道间相位调制（XPM）引起非线性偏振散射，而且与比特率和调制格式无关。 线性和非线性系统的监测方法都被证明。

公开(公告)号：US06538787B1

公开(公告)日：2003-03-25

申请号：US09404892

申请日：1999-09-24

Applicant: Lothar Moeller ,  Herwig Kogelnik

Inventor： Lothar Moeller ,  Herwig Kogelnik

IPC: H04B1000

CPC classification number: G02B6/272 ,  G02B6/274 ,  G02B6/278 ,  G02B6/2861 ,  G02B6/29352 ,  G02B6/29395 ,  H04B10/2569

Abstract: A polarization mode dispersion (PMD) emulator may include one or more modular “cells” that emulate PMD. Each of the cells may include optical delay and phase modulation components. The optical delay and/or the phase modulation components may be adjusted to account for differences in PMD and two or more of the cells may be combined to further adjust the overall PMD of the apparatus. Similarly, a PMD compensator may include one or more modular “cells” that compensate for PMD, with each of the cells including optical delay and phase modulation components. The optical delay and/or the phase modulation components may be adjusted to compensate for various PMD values and two or more of the cells may be combined to further adjust the overall PMD compensation of the apparatus. The PMD compensator apparatus may be used to compensate for PMD in wideband applications, such as wavelength division multiplexed (WDM) systems.

Abstract translation: 偏振模色散（PMD）仿真器可以包括一个或多个模拟PMD的模块化“单元”。 每个单元可以包括光学延迟和相位调制分量。 可以调整光学延迟和/或相位调制分量以解决PMD中的差异，并且可以组合两个或更多个单元以进一步调整装置的总体PMD。 类似地，PMD补偿器可以包括补偿PMD的一个或多个模块化“小区”，其中每个小区包括光学延迟和相位调制分量。 可以调整光学延迟和/或相位调制分量以补偿各种PMD值，并且可以组合两个或更多个单元以进一步调整装置的总体PMD补偿。 PMD补偿器装置可用于补偿诸如波分复用（WDM）系统的宽带应用中的PMD。